摩擦电效应
纳米发生器
接触带电
材料科学
整流器(神经网络)
能量收集
直流电
电气工程
静电感应
光电子学
机械能
电容器
电极
电压
能量(信号处理)
计算机科学
物理
功率(物理)
工程类
循环神经网络
人工神经网络
复合材料
量子力学
机器学习
随机神经网络
作者
Weizhi Song,Hui-Jing Qiu,Jun Zhang,Miao Yu,Seeram Ramakrishna,Zhong Lin Wang,Yun‐Ze Long
出处
期刊:Nano Energy
[Elsevier]
日期:2021-12-01
卷期号:90: 106531-106531
被引量:25
标识
DOI:10.1016/j.nanoen.2021.106531
摘要
The triboelectric nanogenerator (TENG), which converts mechanical energy in the environment into electrical energy, has become a promising energy harvesting technology. However, the traditional TENG is based on the coupling of contact electrification and electrostatic induction to directly generate alternating current (AC), which requires a rectifier to obtain direct current (DC) to drive electronic devices. This greatly limits the portability and energy efficiency of the energy system. In this work, a new type of DC-TENG is designed. Two conductors with different electron-obtaining abilities are selected as TENG electrodes, and the electron-obtaining ability of the triboelectric layer is between the two electrode materials. So, the triboelectric layer can continuously transfer electrons from one electrode to another, realizing a unidirectional flow of electrons. In the experiment, Cu wood and Al were selected to be assembled into a DC-TENG, without a rectifier or air breakdown, and successfully achieved a DC output. The correlation between the motion parameters and the output makes the output continuously adjustable. The rotation mode obtains a constant DC output of 80 V, 270 μA/m2, and successfully charges capacitors quickly and illuminates small electronic devices. The electrodes and triboelectric layers of other materials also achieve DC output, which proves the universality of this model.
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